544321 has 4 divisors (see below), whose sum is σ = 549252. Its totient is φ = 539392.

The previous prime is 544279. The next prime is 544367. The reversal of 544321 is 123445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25921 + 518400 = 161^2 + 720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544321 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2296 + ... + 2521.

It is an arithmetic number, because the mean of its divisors is an integer number (137313).

2⁵⁴⁴³²¹ is an apocalyptic number.

It is an amenable number.

544321 is a deficient number, since it is larger than the sum of its proper divisors (4931).

544321 is a wasteful number, since it uses less digits than its factorization.

544321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930.

The product of its digits is 480, while the sum is 19.

The square root of 544321 is about 737.7811328572. The cubic root of 544321 is about 81.6491553921.

Adding to 544321 its reverse (123445), we get a palindrome (667766).

The spelling of 544321 in words is "five hundred forty-four thousand, three hundred twenty-one".